CVE-2020-29562
Moderate
CVE-2020-29562
The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.
Exploit probability
1.5%
Published
December 4, 2020
Required by
Not available
Last source change
August 19, 2026
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2020-29562
View original source
The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.
05 / REFERENCES
Further evidence
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TVCUNLQ3HXGS4VPUQKWTJGRAW2KTFGXS/
- https://security.gentoo.org/glsa/202101-20
- https://security.netapp.com/advisory/ntap-20210122-0004/
- https://sourceware.org/bugzilla/show_bug.cgi?id=26923